Conduit.



A. P. HINSKY.

CONDUIT.

APPLICATION FILED JAN16,1911.

1,022,943; Patented Apr.9,1912.

u f WITNESSES:

ATRNEYs n Unire srrn reifer cierren.

ANTHONY P. HINSKY, 0F BROOKLYN, NEW YORK, ASSIGNOR TVG ESTEBN LMIBLE CONDUIT CMPANY, OF BROOKLYN, N EW YGRK, A CORPORATION OF NEW YORK.

CONDU'IT.

increase the iexibility of such conduits, and" to simplify1 the construction and reduce the -cost of manufacture thereof; and to'these ends my invention consists in novel details of construction and combinations of parts such as will be fully pointed out hereinafter.

In .order that n y mvention may be fully u'nderstood, I will now proceed to describe an embodiment there' f, having reference to the accompanying drawingillustrating the same, and will then point out the novel features in claims. l

In the drawing: Figure 1 is a View in side elevation of a'conduit constructed in accord- A, ance with my invention, portions thereof be- -30 lng successively broken away in order to illustrate the parts beneath them. Fig. 2 is a View in transverse section therethrough. Eig. 3 is adetail View of a part of the strip from whichl the outer tubular portion is formed.

" The conduit in general'comprises an inner 'tubular portion 5, an outer tubular portion 6; and a covering 7. The inner andlouter tubular portions 5 and l6 may be conlposed of any'material suitably-flexible for the purpose, such material being preferably paper or fiber. Theouter covering 7 is preferably composed of fabric- `being convenient-ly Wonen in position as is common in this class of conduit.

The inner tubular portion 5 is composed of a strip wound helically in place, preferably with the adjacent edges thereof in abutting relation. The width of the strip is somewhat large in proportion to the diameter of the tube to -be formed whereby the pitch of the helix is considerable, for instance,- in a conduit-having an inner .bore of 4about three-eighths of an inch, the width may besuch as to result in about three or Specification of Letters Patent.

Application filed January 1G. 1911. vSeria No. 602,892.

four turns to the linear toot. ll he outer tubular portion 6 isfformed of a narrower strip whereby the pitch is considerably less and there is considerably larger number of turns' to the running foot. /ioreoverg the pitch of the helix ot' the outer tube is preferably in the opposite direction to that of the inner tube, that is to say, the two strips are preferably wound in opposite directions.

The strip of which the tubular portion G is composed is preferably provided with perforations S, these perforations being ar- -Patented A pr. Si, glg.

ranged obliquely as is shown in Fig. 3 f

whereby when the strip is wound around the inner tubular. portion as shown in Fig. l, they will extend at substantially right angles to the axis of the conduit as also appears in Fig. l.

A. tube constructed in accordance with thev foregoing will be 1very flexible owin both to the relationship oi' the windings andto the transverse perforations of the outer tubular portion. llioreover, itl will be readily 'seen that such a conduit is inexpensive to manufacture, both in respect to the materials eniployed and the work to be done thereon.

The-material of which the tubular portions 5 and 6 are 'formed may be suitably impregnated to make it waterproof or'iire proof, 4or both, as is comme; in this art.

What l claim is:

l. In a conduit a strip arranged .to be helically wound to form a tube.y said strip being provided with diagonally disposed slots inclined to the edge of 'the strip at an angle corresponding with the pitch oi' said helix, whereby said slots will be at substantially right angles to the asis of the finished tube.

In aconduit a parallel sided strip-'arranged to be helically wound to term ai tube f cach other, said'strip being provided with equally spaced diagonally,disposed slots inclined to the edges of the strip at' an angle corresponding with the pitch of said helix, whereby said slots will be :u substantially right angles to theaXis of the finished tube.

3. In a conduit a strip arranged to be heli cally wound to form a tube. said strip being provided with diagonally sposed slots inclined to the edgeiof the s, ..p an angle corresponding with the pif helix, whereby said slots will l tially right angies the airis o' ied tube,

vwith the opposite edges ot' the strip abr. tting I ioa and an inner` tube formed of an unslotted strip helically Wound in the opposite direction.

'4. n a conduit a parallel sided strip arranged to be helieally Wound to form a tube with the opposite edges of the strip abutting` each othen; said strip being provided with equally spaced diagonally disposed slots inclined to the edges of the strip at an angle corresponding with the pitch of said helix, whereby said slots Will be at substantially right angles to the aXis of the inislied tube, and an inner tube formed of an unslotted strip Wider than the slotted strip Wound in the opposite direction.

5. In a conduit a parallel sided strip of `vegetable fiber arranged to be helically Wound to form a tube with the opposite edges of the strip abutting each other, said strip being provided with equally spaced diagonally disposed slots inclined to the edges of the strip at an angle corresponding` With the pitch of said helix, whereby said slots Will be at substantially right angles to the axis of the finished tube, an inner tube formed or" an unslotted strip Wider than the slotted strip Wound in the opposite direction, and a Woven textile covering over the slotted tube.

6. In a conduit a parallel sided strip of vegetable fiber arranged to be helically Wound to forni a tube with the opposite edges of the strip abutting each other, said strip being provided lwith equally spaced diagonally disposed slots inclined to the edges of the strip at an angle corresponding With the pitch of said helix, whereby said slots will be at substantially right angles to the axis of the inished tube, an inner tube formed of an unslotted strip wider than the slotted strip wound in the opposite direction. and a Woven textile covering over the slotted tube, said Covering being impregnated with a Water proofing solution.

ANTHONY P. HINSKY.

Vitnesses v J. C, HRTMANN, LYMAN S. ANDREWS, J r. 

